In a 5 to 4 ruling the Supreme Court struck down a provision of the Defense of Marriage Act (DOMA) which forbade Federal recognition of same-sex marriages in states that recognize those marriages.
From Amy Howe via: SCOTUS Blog
“DOMA singles out a class of persons deemed by a State entitled to recognition and protection to enhance their own liberty.”
The court is also considering California’s Proposition, California’s anti-gay marriage law. More info to follow.